G10L 21/038
Using band spreading techniques
Official title: using band spreading techniques
G10L21/038 (Using band spreading techniques) appears on 1,343 US grants and 1,447 published applications in this corpus.
Search patents in G10L- Granted patents
- 1,343
- Published applications
- 1,447
- Assignees
- 256
- Inventors
- 1,123
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 15 |
| 2003 | 3 | 19 |
| 2004 | 12 | 29 |
| 2005 | 4 | 19 |
| 2006 | 13 | 27 |
| 2007 | 14 | 31 |
| 2008 | 23 | 49 |
| 2009 | 19 | 47 |
| 2010 | 25 | 55 |
| 2011 | 42 | 42 |
| 2012 | 60 | 59 |
| 2013 | 59 | 59 |
| 2014 | 42 | 49 |
| 2015 | 50 | 63 |
| 2016 | 77 | 94 |
| 2017 | 135 | 147 |
| 2018 | 108 | 80 |
| 2019 | 131 | 105 |
| 2020 | 101 | 64 |
| 2021 | 45 | 80 |
| 2022 | 63 | 67 |
| 2023 | 98 | 109 |
| 2024 | 94 | 64 |
| 2025 | 73 | 59 |
| 2026 | 36 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Oversampling in a combined transposer filterbank6 Oct 2026US 12,753,444 B2Dolby International AB
- Method and apparatus for neural network-based audio encoding using subband decomposition8 Sep 2026US 12,731,593 B2Tencent Technology (Shenzhen) Company Limited
- Efficient combined harmonic transposition1 Sep 2026US 12,725,592 B2Dolby International AB
- Audio encoder and decoder using a frequency domain processor, a time domain processor, and a cross processing for continuous initialization1 Sep 2026US 12,725,620 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Audio signal encoding method, decoding method, encoding device, and decoding device25 Aug 2026US 12,718,824 B2Huawei Technologies Co., Ltd.
- Filterbank Pitchshifter24 Sep 2026US 2026/0292437 A1Eventide Inc.
- Generatively pretrained models for speech restoration and extraction25 Jun 2026US 2026/0179600 A1NVIDIA Corporation
- Speech model parameter interpolation28 May 2026US 2026/0148745 A1Digital Voice Systems, Inc.
- Apparatus and method for processing an input audio signal using cascaded filterbanks30 Apr 2026US 2026/0120700 A1Dolby International AB
- Audio decoder, audio encoder and method for coding of frames using a quantization noise shaping16 Apr 2026US 2026/0105925 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
Most cited
By later US patents
- Speech bandwidth extension method and apparatus433US 5,455,888 ANorthern Telecom Limited · 1995
- Source coding enhancement using spectral-band replication314US 6,680,972 B1Coding Technologies Sweden AB · 2004
- Reconstruction of wideband speech from narrowband speech using codebooks275US 5,581,652 ANippon Telegraph and Telephone Corporation · 1996
- Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting211US 6,708,145 B1Coding Technologies Sweden AB · 2004
- Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility188US 6,226,616 B1Digital Theater Systems, Inc. · 2001